<template>
    <div>
        <div class="search">
            <input v-model="keyword" class="search-input"  type="text" placeholder="输入城市名或拼音"/>
        </div>
        <div class="search-content" ref="search" v-show="keyword">
            <ul>
                <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleClickCity(item.name)">{{item.name}}</li>
                <li class="search-item border-bottom" v-show="hasNotData">没有找到匹配数据</li>
            </ul>
    
        </div>
    </div>
    
</template>
<script>
import {mapMutations }from 'vuex'
import BScroll from 'better-scroll'
export default {
    name:'CitySearch',

    data(){
        return {
            keyword:"",
            list:[],
            timer:null
        }
    },
    props:{
        cities:Object
    },
    watch:{
        keyword(){
            if(this.timer){
                clearTimeout(this.timer)

            }
            if(!this.keyword){
                this.list=[]
                return
            }
            this.timer=setTimeout(()=>{
                const result=[]
                for (let i in this.cities){
                    this.cities[i].forEach((value) => {
                        if(value.spell.indexOf(this.keyword)>-1||
                            value.name.indexOf(this.keyword)>-1){
                                result.push(value)
                                }
                        
                    })
                }
                this.list=result
            },100)
        }
    },
    mounted() {
        this.scroll =new BScroll(this.$refs.search)
    },
    computed:{
        hasNotData(){
            return !this.list.length
        }

    },
    methods:{
        handleClickCity(city){
      // this.$store.dispatch('changeCity',city)
      this.changeCity(city)
      this.$router.push('/')

    },
    ...mapMutations(['changeCity'])
    }
}

</script>
<style lang="stylus" scoped>
@import '~styles/varibles'
.search
    height:37px
    padding:0px 5px
    background:$bgColor
    .search-input
        box-sizing:border-box
        width:100%
        height:31px
        line-height:31px
        text-align:center
        border-radius:3px
        color:#666
.search-content
    z-index :1
    overflow :hidden
    position:absolute
    top:79px
    left:0
    right :0
    bottom :0
    background:#eee
    .search-item
        line-height:31px
        padding-left:10px
        color:#666
        background:#fff




</style>
